gallic acid

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gal·lic acid

 (găl′ĭk, gô′lĭk)
A colorless crystalline polyphenol, C7H6O5, derived from certain tannins and used as a tanning agent, as an ink dye, in photography, and in pharmaceuticals.

[French acide gallique, from galle, plant gall; see gall3.]

gallic acid

(Elements & Compounds) a colourless crystalline compound obtained from tannin: used as a tanning agent and in making inks, paper, and pyrogallol; 3,4,5-trihydroxybenzoic acid. Formula: C6H2(OH)3COOH

gal′lic ac′id

a white or yellowish solid, C7H6O5, obtained from nutgalls, used esp. in tanning and dyes.
[1785–95; < French]
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.gallic acid - a colorless crystalline acid obtained from tannin
acid - any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt
References in periodicals archive ?
In brief, a number of dilutions of gallic acid (50-500 ug/mL) were obtained to prepare a calibration curve.
P80, which contains a rare combination of five natural polyphenolic antioxidants -tannic acid, gallic acid, gamma-amino butyric acid, ellagic acid and corilagin, is extracted from high quality longan (commonly known as "dragon eye") fruit sourced from Northern Thailand.
The extract solutions from maceration and Soxhlet extraction as well as a standard solution of gallic acid with a concentration of 2 mg/mL were sampled as many as 10 [mu]L and spotted to silica gel [GF.
Gallic acid is a potential antioxidant and has previously been shown to confer protective effects against radiation in mice.
Antioxidants in vinegar, such as catechin, gallic acid, caffeic, and chlorogenic acids help keep the body healthy and running smoothly.
The phenolic compounds in the skin, namely Gallic acid and Ferulic acid, help fight infections by breaking the cell wall of these bacteria.
Pomegranate peel comprises of a plentiful amount of polyphenolic compounds such as tannins, gallic acid and ellagic acid and has been used in various food and non-food formulations (Viuda-Martos et al.
An active ingredient in the serum, called Diglucosyl Gallic Acid (DGA), stops the spread of melanin throughout the skin.
The phenolic standards used were gallic acid, catechin, epigallocatechin gallate, epicatechin, syringic acid, p-coumaric acid, ferulic acid, salicylic acid, resveratrol and quercetin all obtained from Sigma-Aldrich (St.
Synthesis of bio-based epoxy resin from gallic acid with various epoxy equivalent weights and its effects on coating properties--Deepak M.
Gallic acid was used as a spectrophotometric standard (Varian spectrophotometer, model Cary 50 scan) and the total phenolic content was expressed as gallic acid equivalent (GAE / 100G fresh sample) at 750 nm.